Compatibility Level 130 With Legacy Cardinality

In SQL Server 2016 there are a lot of goodies under Compatibility Level 130, such as performance improvements with Columnstore and In-Memory OLTP and all the Query Optimizer enhancements done over the years under Trace Flag 4199. So we are faced with a situation where there are workloads that can benefit from some enhancements that come with Compatibility Level 130, but that cannot use the new CE.

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